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vhost-user-blk: split vhost_user_blk_sync_config() 

Split vhost_user_blk_sync_config() out from
vhost_user_blk_handle_config_change(), to be reused in the following
commit.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Acked-by: Raphael Norwitz <raphael@enfabrica.net>
Message-Id: <20240920094936.450987-3-vsementsov@yandex-team.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2024-09-20 12:49:35 +03:00 committed by Michael S. Tsirkin
parent 9e4cc917e0
commit 4dfa127314
1 changed files with 19 additions and 7 deletions
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26
hw/block/vhost-user-blk.c
View File

@ -90,27 +90,39 @@ static void vhost_user_blk_set_config(VirtIODevice *vdev, const uint8_t *config)
s->blkcfg.wce = blkcfg->wce;
}
static int vhost_user_blk_sync_config(DeviceState *dev, Error **errp)
{
int ret;
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VHostUserBlk *s = VHOST_USER_BLK(vdev);
ret = vhost_dev_get_config(&s->dev, (uint8_t *)&s->blkcfg,
vdev->config_len, errp);
if (ret < 0) {
return ret;
}
memcpy(vdev->config, &s->blkcfg, vdev->config_len);
virtio_notify_config(vdev);
return 0;
}
static int vhost_user_blk_handle_config_change(struct vhost_dev *dev)
{
int ret;
VirtIODevice *vdev = dev->vdev;
VHostUserBlk *s = VHOST_USER_BLK(dev->vdev);
Error *local_err = NULL;
if (!dev->started) {
return 0;
}
ret = vhost_dev_get_config(dev, (uint8_t *)&s->blkcfg,
vdev->config_len, &local_err);
ret = vhost_user_blk_sync_config(DEVICE(dev->vdev), &local_err);
if (ret < 0) {
error_report_err(local_err);
return ret;
}
memcpy(dev->vdev->config, &s->blkcfg, vdev->config_len);
virtio_notify_config(dev->vdev);
return 0;
}